Dickinsonite-(KMnNa)
Moore P B, Araki T, Merlino S, Mellini M, Zanazzi P F
American Mineralogist 66 (1981) 1034-1049
The arrojadite-dickinsonite series, KNa4Ca(Fe,Mn)14Al(OH)2(PO4)12:
crystal structure and crystal chemistry
sample BR
Locality: Branchville, Connecticut, USA
_database_code_amcsd 0000848
24.940 10.131 16.722 90 105.60 90 A2/a
atom      x      y      z occ
Al        0     .5      0
Fe1  .47856 .88682 .22519
Fe2  .26879 .00654 .21154
Fe3  .13944 .01293 .10620
Fe4  .40442 .24825 .02195
Fe5  .40102 .74524 .03375
Fe6  .35182 .69839 .20674
Fe7  .34356 .29531 .22190
Ca   .48542 .22242 .23362  .5
Na1  .12070 .51223 .12679
Na2       0      0      0  .5
Na3     .25  .1600      0  .5
Na4  .45639 .93751 .21059  .5
K       .25  .4960      0
P1    .3693  .0090  .1168  .5
P2    .3388  .9987  .0847  .5
P3   .42283 .46775 .12855
P4   .03808 .24996 .12487
P5   .04757 .76632 .10221
P6   .21185 .72319 .12967
P7   .20441 .29526 .14445
O1    .3680  .0624  .0281
O2    .3643 -.1369  .1139
O3    .3235  .0762  .1455  .5
O4    .4246  .0410  .1799  .5
O5    .2713  .9691  .0277  .5
O6    .3473  .0797  .1542  .5
O7    .4438  .4455  .0496
O8    .3907  .5974  .1190
O9    .3854  .3460  .1281
O10   .4702  .4652  .2086
O11   .0733  .1649  .0818
O12   .0370  .3924  .0944
O13  -.0208  .1911  .1070
O14   .0622  .2476  .2206
O15   .0485  .6431  .0467
O16   .0789  .8710  .0646
O17  -.0114  .8122  .0976
O18   .0773  .7359  .1929
O19   .1713  .6816  .0473
O20   .2705  .6807  .1302
O21   .2091  .8742  .1403
O22   .1936  .6563  .2018
O23   .1665  .3376  .0602
O24   .2629  .3503  .1545
O25   .2058  .1438  .1494
O26   .1813  .3499  .2155
F     .1354  .0009  .2309